Clamping device for harness or heddle bars.



PATBNTED MAY 26, 1903.

0. 1). WHITING. GLAMPING DEVICE FOR HARNESS 0R HEDDLB BARS.

APPLICATION FILED OUT. 11, 1902.

H0 MODEL.

UTTED STATES Patented May 26, 1903.

PATENT OFFICE.

DRAPER COMPANY, HOPED TION OF MAINE.

ALE, MASSACHUSETTS, A CORPORA- I CLAMPING DEVICE FOR HARNESS OR HEDDLE BARS.

SPECIFICATION forming part of Letters Patent No. 729,245, dated May 26, 1903.

Application filed October 11, 1902. Serial No. 126,858. (No model.)

T0 @ZZ whom it may concern:

Be it known that I, ,OHARLEsD. WVHITING, a citizen of the United States, and a resident of Nashua, county of Hillsboro, State of New Hampshire, have invented an Improvement in Clamping Devices for Harness or Heddle Bars, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object the production of a simple and effective clamping device for holding in operative position in a loom harness-frame the transverse bar or support for sustaining the harness or heddles.

In the case of steel harnesses, wherein the heddles also perform the function of warpstop-1n otion-controlling detectors, they are sustained 011 a transverse bar attached at its ends to the upright sides of the harness-frame, and for applying or removing the heddles the bar must be made detachable.

By means of the clamping device forming the subject of my present invention the bar is readily and quickly locked or clamped in position and is as readily unclamped for removal when necessary.

Figure l is a front elevation of a harnessframe, showing the supporting-bar in operative position and with one embodiment of my present invention applied thereto. Fig. 2 is an enlarged vertical detail on the line 2 2, Fig. 3, looking toward the left. Fig. 3 is a vertical sectional view 011 the line 3 3, Fig. 2, the clamping device being shown in elevation; and Fig. 4 is a longitudinal sectional detail on the line a -.t, Fig. 3.

Referring to Fig. 1, the harness-frame comprises a bottom bar a to which the usual treadle (not shown) is suitably connected, said bottom bar having rigidly attached to it at its ends upright parallel side bars, (shown as rods 0-,) screw-threaded at their upper ends at a to enter threaded depending bosses 71/ of heads 72, preferably made as castings, and having at their upper ends eyes h to receive links or other overhead suspending devices at, Fig. 1. Each head has a longitudinal slot h2 in its upper portion, extended completely through it from its inner to its outer face, and the lower part of the slot is reduced in width at 7L3 (see Fig. 2) to form a socket for the end of the heddle or harness supporting bar I), the outer end of the socket being closed, as shown in Fig. 3, by the adjacent part of the head.

The heddle support or barb is set on edge, and in applying it its ends are inserted in the slots h of the opposite heads, and then the bar is depressed into the recesses 7L3, downturned notches b in the bar near its ends embracing holding-pins h, passing transversely across the sockets. These pins may be driven through suitable holes in the heads or they may be made as an integral part of the casting. These pins prevent any relative lateral movement of the side bars of the harness-frame and maintain the structure rigid.

In order to pressthe bar down and retain it in its sockets, I employ resilient or springclamping members, which are inserted in the slots 7L2 and bear upon the top ofthe bar, said members being hereinshown as held in place by retainers which are adjustable to vary the pressure of the clamp members on the bar.

The clam in member 0 is made of a iece of spring metal, such as stout Wire, bent into a substantially S-shape (see Fig. 3) and preferably made square in cross-section, the upper arm of the member being made longer, as at c, to project beyond the inner face of the head, the said clamping member being of such thickness as will sertion in the slot.

A bolt (I, headed at d at its inner end, is passed through the top of the slot 7L2 above the clamp member 0 and is set up by a nut (Z on its outer end, a washer 10 preferably be ing interposed between the nut and the adjacent outer face of the head.

The clamping member a is under compres sion between the bolt and the top of the heddle support or bar Z), and the end a of said member abuts against the head (Z of the bolt.

By setting up the nut d the member a is still further compressed, so that any desired degree of force can be exerted to hold the bar permit its ready inb firmly in his socket, the lower arm 0 of the member 0 being held by the part of the head which forms the outer end of the socket 71 To remove the bar, the bolts are slackened and the clamping members 0 are taken out, after which the bar can be lifted into the slots 71 to disengage the bar from the pins 71 and then the bar is withdrawn from the heads by a longitudinal movement.

The sides of the socket h are shown in Fig. 2 as slightly convergent toward the bottom of the socket to prevent side movement of the bar 01 when seated.

By making the clamping members 0 resilient or spring-acting they are readily inserted and removed, and they permit slight variations in the depth of the heddle-support.

The retaining-bolts not only prevent accidental removal of the clamping members, but, as described, aiford ready means for adjusting the pressure exerted by said members on the supporting-bar b to retain it seated.

Some of the heddles, as H, are shown in Fig. 1 suspended from the bar, the heddles being of the type which also serve as warpstop-motion-controlling detectors.

My invention is not restricted to the precise construction and arrangement shown and described, as the same may be modified or varied in different particulars by those skilled in the art without departing from the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is 1 1. In a loom harness-frame, side bars having heads each provided witha socket, a detachable heddle-support adapted to be seated at its ends in the sockets, and resilient clamping means to press upon'one edge of and retain the bar seated with its opposite edge against the adjacent ends of the sockets.

2. In a loom harness-frame, side bars having heads each provided with a socket and a slot above and communicating with the socket, a detachable heddle-support adapted to be seated at its ends in the sockets, and resilient clamping members inserted in the slots of the heads and bearing upon the top of the heddle-support, to retain the latter seated. I

3. Inaloom harness-frame, side bars having heads each provided With a longitudinal slot terminating at its lower end in a socket, a heddle-support adapted to be detachably seated at its ends in the sockets, and S-shaped spring clamping members to enter the slots and press the heddle-support into the sockets.

4. In a loom harness-frame, side bars having heads each provided with a longitudinal slot terminating at its lower end in a socket, a heddle-support adapted to be detachably seated at its ends in the sockets, S-shaped spring clamping members to enter the slots and press the heddle-supports into the sockets, and means to retain the clamping members in the slots and vary their pressure upon the heddle-support.

5. In a' loom harness-frame, side bars having heads each provided with a longitudinal socket having a transverse holding-pin, a detachable heddle-support having a downturned notch in one edge near each end, to embrace the pins when the ends of the support are seated in the sockets, and springacting clamping members to press upon the edge of the heddle-support opposite to the notched edge and maintain its ends firmly seated in the sockets with the pins in the notches.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES D. VVHITING.

WVitnesses:

E. B. GOULD, M. MACDONALD. 

